Hard PVC Adhesive Tape for Heavy-Traffic Floor Marking
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Solution Overview
Problem
Polymeric pressure sensitive adhesive tapes lack sufficient strength, hardness, and adhesive quality to withstand heavy traffic in industrial settings, leading to wear, tearing, cracking, and detachment, which limits their industry acceptance and necessitates time-consuming painting alternatives.
Innovation Solution
A polymeric adhesive tape with a Shore A Hardness of 92-100 and a textured surface, combined with a pressure-sensitive adhesive layer, providing improved tear resistance, strength, and abrasion resistance, and optionally a removable laminating substrate for enhanced durability and aesthetic flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If polymeric pressure sensitive adhesive tape is used for floor marking, then it provides economical and adaptable floor marking, but it lacks sufficient strength and hardness to prevent wearing, tearing, cracking and breakage from heavy traffic
Solution Approach 1:
The patent applies composite materials by combining a polymeric pressure-sensitive adhesive layer with a reinforcing layer comprising woven or non-woven fabric, glass mat, or metal mesh. This composite structure integrates the adhesive properties of the polymeric layer with the mechanical strength of the reinforcing layer, resolving the contradiction between ease of manufacture and strength to withstand heavy traffic.
Solution Approach 2:
The patent changes the physical parameters of the adhesive tape by specifying a thickness range of 0.015 to 0.065 inches and incorporating materials with specific Shore A hardness values (70-100 for the polymeric layer, 40-80 for the reinforcing layer). These parameter changes enhance the tape's ability to resist wear, tearing, and cracking while maintaining its adhesive properties.
2Ease of operation
If polymeric pressure sensitive adhesive tape is used for floor marking, then it provides easy application, but poor adhesive quality causes repeated traffic to detach the tape from the floor
Solution Approach 1:
The composite structure with the reinforcing layer distributed throughout the adhesive layer provides consistent mechanical support that prevents detachment under repeated traffic while maintaining the pressure-sensitive adhesive properties for easy application.
Solution Approach 2:
The reinforcing layer is distributed throughout the adhesive layer at specific concentrations (0.1 to 5.0 ounces per square foot), providing localized strength enhancement where needed while preserving the overall adhesive quality and ease of application.
3Ease of manufacture
If polymeric pressure sensitive adhesive tape is used for floor marking, then it provides cost-effective solution, but aesthetic qualities and physical properties are diminished from scuffing, scratching, and the like
Solution Approach 1:
The reinforcing layer acts as a protective barrier that resists scuffing and scratching, preserving the aesthetic qualities of the floor marking while maintaining the cost-effectiveness of the polymeric pressure-sensitive adhesive tape system.
Solution Approach 2:
The reinforcing layer provides beforehand protection against scuffing and scratching by creating a more durable surface that resists damage from heavy traffic and environmental factors, preventing aesthetic deterioration before it occurs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tape exhibits significantly higher yield point, tear strength, peel adhesion, and abrasion resistance, effectively preventing wear and detachment, thus enhancing its suitability for industrial applications like floor markings.
Implementation Method 1
a first layer of polymeric material having a Shore A Hardness of between 92 and 100
Implementation Method 2
a second layer of adhesive. Preferably, the adhesive is of a pressure sensitive type
Data Source
AI summary
The adhesive tape of this application comprises a layer of polymeric material, particularly a polyvinyl chloride, having a Shore A Hardness of between 92 and 100 and a layer of adhesive material attached to a surface of the layer of polymeric material.